# Mendeleev's periodic table (1869)

URL: https://history-russia.com/timeline/1869-mendeleev-s-periodic-table
Categories: main-event

Dmitri Mendeleev presented his periodic system of the elements in 1869, predicting the properties of undiscovered elements. The same year Leo Tolstoy completed the publication of 'War and Peace'. Gallium, scandium and germanium soon confirmed Mendeleev's predictions. Both works are among the greatest contributions of Russia to world science and literature.

## Why it matters
Both works are among the greatest contributions of Russia to world science and literature.

Ruler at the time: [Alexander II](https://history-russia.com/rulers/alexander-ii)

## Sources
- [Wikipedia — Dmitri Mendeleev](https://en.wikipedia.org/wiki/Dmitri_Mendeleev)
- [Wikipedia — War and Peace](https://en.wikipedia.org/wiki/War_and_Peace)
- [Wikipedia — Russian Empire](https://en.wikipedia.org/wiki/Russian_Empire)
- [Encyclopaedia Britannica topic lookup — Mendeleev's periodic table](https://www.britannica.com/search?query=Mendeleev%27s+periodic+table)
- [Wikipedia — Timeline of Russian history](https://en.wikipedia.org/wiki/Timeline_of_Russian_history)